Fig. 14

Combined effects of independent variables: (A, B) Adsorbent dose and time, (C, D) NSM Adsorbent dose and Cu2+ initial concentration, and (E, F) Cu2+ initial concentration and time.

Combined effects of independent variables: (A, B) Adsorbent dose and time, (C, D) NSM Adsorbent dose and Cu2+ initial concentration, and (E, F) Cu2+ initial concentration and time.